What is the molar solubility of in solution? Given that, solubility product of
of a non-volatile non-electrolyte solute is dissolved in of two different solvents and whose ebulliscopic constants are in the ratio of . The ratio of the elevation in their boiling points, is :
Molal depression constant for a solvent is . The depression in the freezing point of the solvent for is :
( Assume complete dissociation of the electrolyte )
The osmotic pressure of a dilute solution of an ionic compound in water is four times that of a solution of in water. Assuming complete dissociation of the given ionic compounds in water, the concentration of in solution is :
Liquid and liquid form an ideal solution. The vapour pressures of pure liquids and are and , respectively, at the same temperature. Then correct statement is :
For the solution of the gases, w,x,y and z in water at 298 K, the henry's law constants (K_{H}) are 0.5,2,35 and 40 kbar, respectively. The correct plot for the given data is
The vapour pressures of pure liquids and are and mmHg, respectively at On mixing the two liquids, the sum of their initial volumes is equal to the volume of the final mixture. The mole fraction of liquids is in the mixture. The vapour pressure of the final solution, the mole fractions of components and in vapour phase, respectively are :
The molar solubility of is in water. The expected solubility of in a buffer solution of pH = 12 is :
A solution is prepared by dissolving 0.6 g of urea (molar mass =60g ) and 1.8 g of glucose (molar mass = 180 g ) in 100 mL of water at . The osmotic pressure of the solution is:
(R=0.08206 L atm
8.2 atm
2.46 atm
4.92 atm
1.64 atm
The freezing point of a diluted milk sample is found to be , while it should have been for pure milk. How much water has been added to pure milk to make the diluted sample ?
2 cups of water to 3 cups of pure milk.
3 cups of water to 2 cups of pure milk.
1 cup of water to 3 cups of pure milk.
1 cup of water to 2 cups of pure milk.
Among the colloids cheese (C), milk (M) and smoke (S), the correct combination of the dispersed phase and dispersion medium, respectively is :
C : liquid in solid ; M : Liquid in Solid ; S solid in gas
C : liquid in solid ; M : Liquid in liquid ; S : solid in gas
C : solid in liquid ; M : Liquid in Liquid ; S : solid in gas
C : solid in liquid ; M : Solid in liquid; S : solid in gas
is 40 % ionised in aqueous solution.
The value of its van't Hoff factor (i) is :
2.2
1.8
2.0
1.6
If of is , the molar solubility of in 0.1 M is :
M
M
M
M
Elevation in the boiling point for 1 molal solution og glucose is 2 K .the depression inthe freezing point for 2molal solution of glucose in the same solvent is 2 ,K.the relatin between K_{b }and K_{f}is:
K_{b }= K_{f}
K_{b }=1.5 K_{f}
K_{b }=0.5 K_{f}
K_{b }=2 K_{f}
A mixture of 100 m mol of and 2 g of sodium sulphate was dissolved in water and the volume was made up to 100 mL .The mass of calcium sulphate formed and the concentration of in resulting solution , respectively , are : (Molar mass of , are 74, 143 and 136 g , respectively ; )
Liquids A and B form an ideal solution in the entire composition range . At 350 K , the vapor pressures of pure A and pure B are , respectively . The composition of the vapor in equilibrium with a solution containing 40 mol percent of A at this temperature is :
A solution containg 62 g ethylene glycol in 250 g water is cooled to . If for water is 1.86 K kg , the amount of water (in g ) separated as ice is:
16
32
48
64
Which one of the following statement regarding Henry's law is not corret?
Higher the value of at a given pressure , higher is the solubility of the gas in the liquids.
Different gases have different (Henry's law constant) value at the same tempreture
The partial pressure of the gas in vapour phase is prootional to the mole fraction of the gas in the solution
The value of incerases with increase of temperature and is function of the nature of the gas
For an ideal solution of two components A and B, which of the following is true ?
H_{mixing} < 0 (zero)
H_{mixing} > 0 (zero)
A-B interaction is stronger than
A-A and B-B interactions
A-A, B-B and A-B interactions
are identical
Osmotic pressure of a solution containing 0.1 mole of solute per litre at 273K is (in atm)